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OO <br /> Michael and Sharon Olr rez -3- June 19, 2008 <br /> Claire No. 84: 2 <br /> A. Soil Excavation: unknown volume <br /> B. In-Situ Soil Remediation: none identified <br /> C. Groundwater Remediation: <br /> METHOD groundwater extraction <br /> • DURATION: Jun 04 through present <br /> VOLUME OF GROUNDWATER: 570,550 gallons <br /> • MASS REMOVED: 255 kg of TPH-G <br /> D. Groundwater Trends: <br /> • Benzene trends are shown helkow <br /> II Claim 8492 <br /> 25000 <br /> 20000 <br /> V 15000 -+MW-1 <br /> MW-2 <br /> cs 10000 <br /> NMW-1r <br /> 5000 M__!!4 <br /> - - <br /> m ' <br /> 0 <br /> M Q o C 0 0 a 0 0 0 <br /> a o 0 o o a a o ra a <br /> N N N N N N <br /> co co pp CJ 00 OC W W CQ QO <br /> 0 M M rn M rn M rn M rn <br /> Time <br /> VII. SENSITIVE RECEPTOR SURVEY: two wells identified within 'l2 mile or the cite <br /> VIII. COMMENTS AND JUSTIFICATION FOR RECOMMENDED ACTION <br /> A. Site Description: serv,r,.e ntation <br /> B. Site History: the extent of groundwater contamination is poorly oetir.ed east -f <br /> the site <br /> C. Groundwater Monitoring Summary: moderate monitoring history <br /> D. Remediation Summary: groundwater extraction <br /> E. Contaminant Exposure Pathway Evaluation: unknown <br /> California Enylronmental Protection.Agency <br /> Z0' Reeyd Paper <br />